An 18-year-old East Harlem mother whose infant daughter died after she was found in a bucket of vomit was charged yesterday with criminally negligent homicide.

Savarin Dejesus, who lives at a homeless shelter on East 117th Street, went to a party last Friday night and left 3-month-old Niah Ford with a sitter. After she returned and picked up the baby, the tot became sick and threw up in the bucket.

Dejesus left the bucket next to the bed and went to sleep, holding Niah. When she woke up, the infant was unconscious in the bucket.

She later died at Mount Sinai Hospital from apparent drowning.

Cops busted Dejesus after she acknowledged she had been holding the baby before she fell into the bucket, sources said.